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8.8: Trigonometry Word Problems

Difficulty Level: At Grade Created by: CK-12
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Vocabulary

TermDefinition
Angle of Depression The angle of depression is the angle formed by a horizontal line and the line of sight down to an object when the image of an object is located beneath the horizontal line.
Angle of Elevation The angle of elevation is the angle formed by a horizontal line and the line of sight up to an object when the image of an object is located above the horizontal line.
ASA ASA, angle-side-angle, refers to two known angles in a triangle with one known side between the known angles.
law of cosines The law of cosines is a rule relating the sides of a triangle to the cosine of one of its angles. The law of cosines states that c^2=a^2+b^2-2ab\cos C, where C is the angle across from side c.
law of sines The law of sines is a rule applied to triangles stating that the ratio of the sine of an angle to the side opposite that angle is equal to the ratio of the sine of another angle in the triangle to the side opposite that angle.
Tangent The tangent of an angle in a right triangle is a value found by dividing the length of the side opposite the given angle by the length of the side adjacent to the given angle.
Trigonometric Ratios Ratios that help us to understand the relationships between sides and angles of right triangles.

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Difficulty Level:
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Date Created:
Jul 17, 2012
Last Modified:
Aug 02, 2016
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MAT.GEO.659.L.2